Question

multiple choice question
what can likely happen as a result of genetic drift to uncommon alleles in small, isolated populations?
o they are likely to increase in frequency.
o they are likely to increase in heterozygotes.
o they are likely to be lost.
o they are likely to mutate in the next generation.

Explanation:

Genetic drift is a random change in allele frequencies. In small, isolated populations, rare (uncommon) alleles are more likely to be lost due to random sampling effects. For example, if only a few individuals carry an uncommon allele and by chance those individuals do not contribute to the next - generation's gene pool, the allele will be lost.

Answer:

They are likely to be lost.